Document dnmmqwojgbDD9b6Lokd9v76aG

Heating Systems Valves, Air The Dole Valve Company Main offices and Factory: 1933 Carroll Avenue, Chicago 12, 111. THE ALL STAR LINE AIR AND VACUUM VALVES -Selecting the right vent for a particular purpose is your assurance of the utmost efficiency and economy from one pipe steam heating systems. The Dole line covers every venting need and offers a complete choice for every purpose. Dole No. 1A Vari-Vent Air Valve Modem gas, oil or stoker fired one pipe steam sys tems require QUICK vent ing. This radiator valve lets air escape twice as fast as ordinary valves and balances the flow of steam at the first "breath" of boiler pressure. Adjust able vari-vent feature gets air out of those "far away" radiators as quickly as those close to the boiler. Dole No. 3 Air Valve Vents radiators of hand fired gravity steam heat ing systems. Double shell construction provides separate passages for air and condensation--extra large float defeats spitting or water leakage. Com plete venting assured at pressures up to 10 lbs. Dole No. 2B Vari-Vent Vacuum Valve Adjustable radiator valve for " vacuumizing" and balancing gravity steam heating systems. Patented Dole bellows vacuum seal locks out air after it has been once expelled from the sys tem. Easily adjusted vari-vent feature assists in equalizing steam flow to all radiators. Dole Water Mixer Specify Dole Water Mixers on all tankless heater installations. Dole Water Mixers will provide safer, tempered domestic hot water. Available in three sizes; ^ in., % in. and 1 in. Adjustable temperature range controls domestic water to service from 125 to 175 deg F. The use of a Dole Water Mixer increases the useable hot water of any tankless heater in that the draw through the heater is reduced, thus providing more time for heat absorption. The useable hot water is increased, too, because water at city temperatures is blended with the high temperature water discharged from a tankless heater. Installation is accomplished easily and quickly at low cost. Dole No. 14 Key Valve Dole No. 1933 Air Valve Low cost valve for venting radiators of hand fired systems. Large float pro vides a seal against con densation to stop spitting. Low cost venting device for con cealed radiators and convectors of hot. water heating systems. Protects panel fronts from rusty water stain. Write The Dole Valve Company for complete catalog and handy selector chart which indicates the Dole Air or Vacuum Valve most suited for a particular need. 1236 / Heating Systems Waives Jenkins Bros. 80 White Street, New York 13, N. Y. Bridgeport, Conn.; Boston, Philadelphia. Chicago, San Francisco, Atlanta ------------LOOK FOR THIS DIAMOND MARK Leading Supply Houses Everywhere Stock Jenkins Valves Jenkins VALVES for LIFETIME SERVICE Bronze Iron Steel FOR EVERY NEED JENKINS CATALOG LISTS OVER 500 VALVES Consult Jenkins Catalog for complete details on more than 500 different valves that cover practically all industrial plumb ing and heating, and engineering require ments. Below is a brief list. All-Iron Valves,--globe, angle, gate; Angle Valves,--bronze, steel, and iron body with bronze mounting or trimming. Blow-Off or Y Valves,--bronze and iron. Electrically Operated Valves, Gates, Globes, Angles, Fire Line Valves; Floor Stands; Foot Valves for gasoline service. Gate Valves,--bronze, iron, steel; with - solid wedge or double disc parallel seats; with removable bonnet and renewable bushing. Globe Valves,--bronze, iron and steel; one piece and union bonnets; renewable and integral seats; rubber composition or metal discs and plugs. Horizontal Check Valves,--bronze, iron and steel; Hose Valves; Indicator Posts; Lock Shield Valves. Needle Valves; Non-Return Valves; Quick-Opening; Self-Closing Valves. Radiator Valves; Rapid Action Valves; Regrinding Valves; bronze and iron body with bronze trimming; renew able plug seats and bevel seats of a special nickel alloy in globe, angle, check and swing check patterns. Selclo Valves; Stop and Check Valves,--combination or automatic equal izing; Swing Check Valves;--bronze, iron and steel. Stainless Steel Valves,--globe, angle, gate and check. Underwriters' Pattern Valves, -- check and gate; Whistle Valves; Water works Valves. 1237